I'm considering downloading Steam to my PC as I'm after games like Portal (and the Prelude expansion). I don't really like the idea of having bloated software on my PC or anything that slows down my system/boots at startup, runs in the background, etc. I prefer Pidgin to MSN messenger, VLC to iTunes, for example. I also certainly don't want any sort of adware, or any other form of unwanted software. What are your opinions on Steam, and do I have any reason to be concerned about using it?
Thanks